Merge remote-tracking branch 'net-next/master' into mac80211-next

Resolve the merge conflict between Felix's/my and Toke's patches
coming into the tree through net and mac80211-next respectively.
Most of Felix's changes go away due to Toke's new infrastructure
work, my patch changes to "goto begin" (the label wasn't there
before) instead of returning NULL so flow control towards drivers
is preserved better.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 78 insertions, 61 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 61b0fc433d37..ac1faee2a5b8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -41,7 +41,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 1
 #define DRV_VERSION_MINOR 6
-#define DRV_VERSION_BUILD 12
+#define DRV_VERSION_BUILD 16
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
@@ -57,8 +57,6 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit);
 static int i40e_setup_misc_vector(struct i40e_pf *pf);
 static void i40e_determine_queue_usage(struct i40e_pf *pf);
 static int i40e_setup_pf_filter_control(struct i40e_pf *pf);
-static void i40e_fill_rss_lut(struct i40e_pf *pf, u8 *lut,
-			      u16 rss_table_size, u16 rss_size);
 static void i40e_fdir_sb_setup(struct i40e_pf *pf);
 static int i40e_veb_get_bw_info(struct i40e_veb *veb);
 
@@ -1317,7 +1315,7 @@ static void i40e_rm_default_mac_filter(struct i40e_vsi *vsi, u8 *macaddr)
 	element.vlan_tag = 0;
 	/* ...and some firmware does it this way. */
 	element.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH |
-			I40E_AQC_MACVLAN_ADD_IGNORE_VLAN;
+			I40E_AQC_MACVLAN_DEL_IGNORE_VLAN;
 	i40e_aq_remove_macvlan(&pf->hw, vsi->seid, &element, 1, NULL);
 }
 
@@ -1910,7 +1908,7 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 			ether_addr_copy(del_list[num_del].mac_addr, f->macaddr);
 			if (f->vlan == I40E_VLAN_ANY) {
 				del_list[num_del].vlan_tag = 0;
-				cmd_flags |= I40E_AQC_MACVLAN_ADD_IGNORE_VLAN;
+				cmd_flags |= I40E_AQC_MACVLAN_DEL_IGNORE_VLAN;
 			} else {
 				del_list[num_del].vlan_tag =
 					cpu_to_le16((u16)(f->vlan));
@@ -5244,7 +5242,7 @@ static int i40e_up_complete(struct i40e_vsi *vsi)
 		/* reset fd counters */
 		pf->fd_add_err = pf->fd_atr_cnt = 0;
 		if (pf->fd_tcp_rule > 0) {
-			pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+			pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
 			if (I40E_DEBUG_FD & pf->hw.debug_mask)
 				dev_info(&pf->pdev->dev, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
 			pf->fd_tcp_rule = 0;
@@ -5941,13 +5939,17 @@ void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
 				dev_info(&pf->pdev->dev, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
 		}
 	}
-	/* Wait for some more space to be available to turn on ATR */
+
+	/* Wait for some more space to be available to turn on ATR. We also
+	 * must check that no existing ntuple rules for TCP are in effect
+	 */
 	if (fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM * 2)) {
 		if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
-		    (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) {
+		    (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED) &&
+		    (pf->fd_tcp_rule == 0)) {
 			pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
 			if (I40E_DEBUG_FD & pf->hw.debug_mask)
-				dev_info(&pf->pdev->dev, "ATR is being enabled since we have space in the table now\n");
+				dev_info(&pf->pdev->dev, "ATR is being enabled since we have space in the table and there are no conflicting ntuple rules\n");
 		}
 	}
 
@@ -5978,9 +5980,6 @@ static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
 	int fd_room;
 	int reg;
 
-	if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)))
-		return;
-
 	if (!time_after(jiffies, pf->fd_flush_timestamp +
 				 (I40E_MIN_FD_FLUSH_INTERVAL * HZ)))
 		return;
@@ -6000,7 +5999,7 @@ static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
 	}
 
 	pf->fd_flush_timestamp = jiffies;
-	pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+	pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
 	/* flush all filters */
 	wr32(&pf->hw, I40E_PFQF_CTL_1,
 	     I40E_PFQF_CTL_1_CLEARFDTABLE_MASK);
@@ -6020,7 +6019,7 @@ static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
 		/* replay sideband filters */
 		i40e_fdir_filter_restore(pf->vsi[pf->lan_vsi]);
 		if (!disable_atr)
-			pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
+			pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
 		clear_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state);
 		if (I40E_DEBUG_FD & pf->hw.debug_mask)
 			dev_info(&pf->pdev->dev, "FD Filter table flushed and FD-SB replayed.\n");
@@ -6054,9 +6053,6 @@ static void i40e_fdir_reinit_subtask(struct i40e_pf *pf)
 	if (test_bit(__I40E_DOWN, &pf->state))
 		return;
 
-	if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)))
-		return;
-
 	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
 		i40e_fdir_flush_and_replay(pf);
 
@@ -7156,9 +7152,9 @@ static void i40e_sync_udp_filters_subtask(struct i40e_pf *pf)
 			pf->pending_udp_bitmap &= ~BIT_ULL(i);
 			port = pf->udp_ports[i].index;
 			if (port)
-				ret = i40e_aq_add_udp_tunnel(hw, ntohs(port),
-						     pf->udp_ports[i].type,
-						     NULL, NULL);
+				ret = i40e_aq_add_udp_tunnel(hw, port,
+							pf->udp_ports[i].type,
+							NULL, NULL);
 			else
 				ret = i40e_aq_del_udp_tunnel(hw, i, NULL);
 
@@ -7645,7 +7641,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 			vectors_left--;
 		} else {
 			pf->num_fdsb_msix = 0;
-			pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
 		}
 	}
 
@@ -7665,6 +7660,8 @@ static int i40e_init_msix(struct i40e_pf *pf)
 #endif
 	/* can we reserve enough for iWARP? */
 	if (pf->flags & I40E_FLAG_IWARP_ENABLED) {
+		iwarp_requested = pf->num_iwarp_msix;
+
 		if (!vectors_left)
 			pf->num_iwarp_msix = 0;
 		else if (vectors_left < pf->num_iwarp_msix)
@@ -7678,18 +7675,23 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		int vmdq_vecs_wanted = pf->num_vmdq_vsis * pf->num_vmdq_qps;
 		int vmdq_vecs = min_t(int, vectors_left, vmdq_vecs_wanted);
 
-		/* if we're short on vectors for what's desired, we limit
-		 * the queues per vmdq.  If this is still more than are
-		 * available, the user will need to change the number of
-		 * queues/vectors used by the PF later with the ethtool
-		 * channels command
-		 */
-		if (vmdq_vecs < vmdq_vecs_wanted)
-			pf->num_vmdq_qps = 1;
-		pf->num_vmdq_msix = pf->num_vmdq_qps;
+		if (!vectors_left) {
+			pf->num_vmdq_msix = 0;
+			pf->num_vmdq_qps = 0;
+		} else {
+			/* if we're short on vectors for what's desired, we limit
+			 * the queues per vmdq.  If this is still more than are
+			 * available, the user will need to change the number of
+			 * queues/vectors used by the PF later with the ethtool
+			 * channels command
+			 */
+			if (vmdq_vecs < vmdq_vecs_wanted)
+				pf->num_vmdq_qps = 1;
+			pf->num_vmdq_msix = pf->num_vmdq_qps;
 
-		v_budget += vmdq_vecs;
-		vectors_left -= vmdq_vecs;
+			v_budget += vmdq_vecs;
+			vectors_left -= vmdq_vecs;
+		}
 	}
 
 	pf->msix_entries = kcalloc(v_budget, sizeof(struct msix_entry),
@@ -7701,21 +7703,6 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		pf->msix_entries[i].entry = i;
 	v_actual = i40e_reserve_msix_vectors(pf, v_budget);
 
-	if (v_actual != v_budget) {
-		/* If we have limited resources, we will start with no vectors
-		 * for the special features and then allocate vectors to some
-		 * of these features based on the policy and at the end disable
-		 * the features that did not get any vectors.
-		 */
-		iwarp_requested = pf->num_iwarp_msix;
-		pf->num_iwarp_msix = 0;
-#ifdef I40E_FCOE
-		pf->num_fcoe_qps = 0;
-		pf->num_fcoe_msix = 0;
-#endif
-		pf->num_vmdq_msix = 0;
-	}
-
 	if (v_actual < I40E_MIN_MSIX) {
 		pf->flags &= ~I40E_FLAG_MSIX_ENABLED;
 		kfree(pf->msix_entries);
@@ -7729,9 +7716,16 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		pf->num_lan_qps = 1;
 		pf->num_lan_msix = 1;
 
-	} else if (v_actual != v_budget) {
+	} else if (!vectors_left) {
+		/* If we have limited resources, we will start with no vectors
+		 * for the special features and then allocate vectors to some
+		 * of these features based on the policy and at the end disable
+		 * the features that did not get any vectors.
+		 */
 		int vec;
 
+		dev_info(&pf->pdev->dev,
+			 "MSI-X vector limit reached, attempting to redistribute vectors\n");
 		/* reserve the misc vector */
 		vec = v_actual - 1;
 
@@ -7739,7 +7733,10 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		pf->num_vmdq_msix = 1;    /* force VMDqs to only one vector */
 		pf->num_vmdq_vsis = 1;
 		pf->num_vmdq_qps = 1;
-		pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
+#ifdef I40E_FCOE
+		pf->num_fcoe_qps = 0;
+		pf->num_fcoe_msix = 0;
+#endif
 
 		/* partition out the remaining vectors */
 		switch (vec) {
@@ -7771,9 +7768,14 @@ static int i40e_init_msix(struct i40e_pf *pf)
 				pf->num_vmdq_vsis = min_t(int, (vec / 2),
 						  I40E_DEFAULT_NUM_VMDQ_VSI);
 			}
+			if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
+				pf->num_fdsb_msix = 1;
+				vec--;
+			}
 			pf->num_lan_msix = min_t(int,
 			       (vec - (pf->num_iwarp_msix + pf->num_vmdq_vsis)),
 							      pf->num_lan_msix);
+			pf->num_lan_qps = pf->num_lan_msix;
 #ifdef I40E_FCOE
 			/* give one vector to FCoE */
 			if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
@@ -7785,6 +7787,11 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		}
 	}
 
+	if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) &&
+	    (pf->num_fdsb_msix == 0)) {
+		dev_info(&pf->pdev->dev, "Sideband Flowdir disabled, not enough MSI-X vectors\n");
+		pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
+	}
 	if ((pf->flags & I40E_FLAG_VMDQ_ENABLED) &&
 	    (pf->num_vmdq_msix == 0)) {
 		dev_info(&pf->pdev->dev, "VMDq disabled, not enough MSI-X vectors\n");
@@ -7803,6 +7810,13 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		pf->flags &= ~I40E_FLAG_FCOE_ENABLED;
 	}
 #endif
+	i40e_debug(&pf->hw, I40E_DEBUG_INIT,
+		   "MSI-X vector distribution: PF %d, VMDq %d, FDSB %d, iWARP %d\n",
+		   pf->num_lan_msix,
+		   pf->num_vmdq_msix * pf->num_vmdq_vsis,
+		   pf->num_fdsb_msix,
+		   pf->num_iwarp_msix);
+
 	return v_actual;
 }
 
@@ -8244,8 +8258,8 @@ int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
  * @rss_table_size: Lookup table size
  * @rss_size: Range of queue number for hashing
  */
-static void i40e_fill_rss_lut(struct i40e_pf *pf, u8 *lut,
-			      u16 rss_table_size, u16 rss_size)
+void i40e_fill_rss_lut(struct i40e_pf *pf, u8 *lut,
+		       u16 rss_table_size, u16 rss_size)
 {
 	u16 i;
 
@@ -8286,6 +8300,8 @@ static int i40e_pf_config_rss(struct i40e_pf *pf)
 	if (!vsi->rss_size)
 		vsi->rss_size = min_t(int, pf->alloc_rss_size,
 				      vsi->num_queue_pairs);
+	if (!vsi->rss_size)
+		return -EINVAL;
 
 	lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
 	if (!lut)
@@ -8610,7 +8626,6 @@ static int i40e_sw_init(struct i40e_pf *pf)
 			     I40E_FLAG_WB_ON_ITR_CAPABLE |
 			     I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE |
 			     I40E_FLAG_NO_PCI_LINK_CHECK |
-			     I40E_FLAG_100M_SGMII_CAPABLE |
 			     I40E_FLAG_USE_SET_LLDP_MIB |
 			     I40E_FLAG_GENEVE_OFFLOAD_CAPABLE;
 	} else if ((pf->hw.aq.api_maj_ver > 1) ||
@@ -8685,13 +8700,13 @@ bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features)
 		/* reset fd counters */
 		pf->fd_add_err = pf->fd_atr_cnt = pf->fd_tcp_rule = 0;
 		pf->fdir_pf_active_filters = 0;
-		pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
-		if (I40E_DEBUG_FD & pf->hw.debug_mask)
-			dev_info(&pf->pdev->dev, "ATR re-enabled.\n");
 		/* if ATR was auto disabled it can be re-enabled. */
 		if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
-		    (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED))
+		    (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) {
 			pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+			if (I40E_DEBUG_FD & pf->hw.debug_mask)
+				dev_info(&pf->pdev->dev, "ATR re-enabled.\n");
+		}
 	}
 	return need_reset;
 }
@@ -11338,11 +11353,7 @@ static void i40e_remove(struct pci_dev *pdev)
 	}
 
 	/* shutdown the adminq */
-	ret_code = i40e_shutdown_adminq(hw);
-	if (ret_code)
-		dev_warn(&pdev->dev,
-			 "Failed to destroy the Admin Queue resources: %d\n",
-			 ret_code);
+	i40e_shutdown_adminq(hw);
 
 	/* destroy the locks only once, here */
 	mutex_destroy(&hw->aq.arq_mutex);
@@ -11389,6 +11400,12 @@ static pci_ers_result_t i40e_pci_error_detected(struct pci_dev *pdev,
 
 	dev_info(&pdev->dev, "%s: error %d\n", __func__, error);
 
+	if (!pf) {
+		dev_info(&pdev->dev,
+			 "Cannot recover - error happened during device probe\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
 	/* shutdown all operations */
 	if (!test_bit(__I40E_SUSPENDED, &pf->state)) {
 		rtnl_lock();